Air Conditioner not working?

It could be a wiring or sensor fault. Retrieve the trouble code to find out more about the problem.

Is yours manual or automatic climate control?

How To Use The Self Diagnostic Function

The HVAC control unit has a self diagnostic function for the heating, ventilation, and air
conditioning system. To run the self diagnostic function, do the following:
1. Turn the ignition switch to LOCK (0), and then to ON (II).
2. Set the FAN CONTROL dial to OFF, the TEMPERATURE CONTROL dial on Max
Cool, and select the VENT mode.
3. Turn the ignition switch to LOCK (0), and then to ON (II).
4. Press and hold the RECIRCULATION CONTROL button, then within 10 seconds press
and release the REAR WINDOW DEFOGGER/MIRROR DEFOGGER button five times.
Release the RECIRCULATION CONTROL button? The recirculation indicator blinks two
times, then the self diagnosis begins.

1 An open in the air mix control motor circuit
2 A short in the air mix control motor circuit
3 A problem in the air mix control linkage, door, or motor circuit
4 An open in the mode control motor circuit
5 A short in the mode control motor circuit
6 A problem in the mode control linkage, doors, or motor circuit
7 An open in the recirculation control motor circuit
8 A short in the recirculation control motor circuit
9 A problem in the recirculation control linkage, door, or motor circuit
10 An open or short in the mode control circuit
11 A problem in the mode control linkage, doors, or motor circuit
12 A problem in the blower motor circuit
13 HVAC control unit internal error
14 An open in the evaporator temperature sensor circuit
15 A short in the evaporator temperature sensor circuit

Hi timbogeorge,

Symptom indiates a fault with the air mix door.

Is system automatic HVAC or manual HVAC?

Syatem is equipped with self diagnostic . Let me know thw results.

ENTERING SELF-DIAGNOSTICS

1. Turn ignition on. Turn blower switch OFF. Place recirculation control knob in recirculated air position (indicator light will come on). Press and hold recirculation control switch to fresh air position (indicator light goes off).

2. Continue to hold recirculation control switch until indicator light comes on for 2 seconds. At this point it will blink the Diagnostic Trouble Codes (DTCs) to indicate the faulty component. One blink indicates air mix control motor, 2 blinks indicates mode control motor, and 3 blinks indicates evaporator temperature sensor. See
Fig. 6 . If indicator lights come on, test appropriate component.

NOTE:
Fault information is not retained in memory. In case of multiple problems, the light will indicate the DTC with the least number of blinks.

Air mix door is for changng the air flow between A/C and heater.

That can mean too much refrigerant. You cannot simply randomly add refrigerant. It requires a very specific weight of refrigerant. The only way to get the right amount is to have it entirely evacuated and recharged with the correct amount. You are going to damage the system if your do not.